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counting and probability senior

Problem

A student on vacation for days observed that (1) it rained times, morning or afternoon (2) when it rained in the afternoon, it was clear in the morning (3) there were five clear afternoons (4) there were six clear mornings. Then equals:
(A)
(B)
(C)
(D)
Solution
From the given information, we know that there were halves of the day (either afternoons or mornings), so there were days in total, which is answer choice .
Final answer
B